Footage purportedly showing the continued shelling of Homs - a day after Syria agreed to implement a UN-backed peace plan - has been posted on YouTube.
ITV News has no way of independently verifying the content of this clip.
More top news
Contrary to Michael Gove's belief, people do need experts, now more than ever as we work out what leaving the EU actually means.
Cool and breezy for the time of year
The people behind the moving tribute marking 100 years since the Battle of the Somme were unknown - until now.